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Search Results: 1 - 10 of 2215 matches for " Alvaro; Dominici Arosemena "
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Composition of the zooplankton community,with emphasis in copepods, in Punta Morales,Golfo de Nicoya,Costa Rica
Brugnoli-Olivera,Ernesto; Díaz-Ferguson,Edgardo; Delfino-Machin,Mariana; Morales- Ramírez,Alvaro; Dominici Arosemena,Arturo;
Revista de Biología Tropical , 2004,
Abstract: the composition of the mesozooplanktonic community was studied in the punta morales estuary, gulf of nicoya,pacific coast of costa rica,during 1997.oblique plankton hauls were performed during high and low tide using a 280 μm mesh screen net equipped with a flowmeter.the community was characterized by holoplanktonic and meroplanktonic organisms.for the holoplanktonic community,the main groups were copepods (80%)and chaetognaths (16%).the most abundant species were the copepods acartia lilljeborgii and paracalanus parvus.a.lilljeborgii is a typical estuarine species that maintains high populations in estuarine systems.meroplankton was represented mainly by crustacean larvae (66%),and icthyoplankton (18%).the dominance of crustacean larvae and icthyoplankton is an evidence of the ecological importance of the punta morales zone.rev.biol.trop.52(4):897-902.epub 2005 jun 24.
Ictioplancton en la zona portuaria de Limón, Costa Rica
Arturo Dominici-Arosemena,Ernesto Brugnoli-Olivera,Sylvia Solano-Ulate,Helena Molina-Ure?a
Revista de Biología Tropical , 2000,
Abstract: Four sampling stations were set 200-500m off Limon Port, Costa Rica, at an average depth of 20 m. From October 1996 to May 1997 horizontal subsuperficial trawls were done for 12 minutes at a speed of 1.853 Km/h, with a 1 000 μm net were surveyed with. A total of 28 samples were processed and 104 physical-chemistry parameter measurements were taken. Average salinity was 30.1 + 3.7 and dissolved oxygen 6.9 + 0.6 mg l-1 reflecting good aeration throughout the sampling period. This suggests good mixture and a highly dynamic hydrography. Temperature showed no drastic variations (28.0 + 1.7 °C), possibly because of the constant mixing with shallow water. The highest larval counts were for November and early January and include families from reefs and estuaries (Balistidae, Lutjanidae) and from coastal areas (Centropomidae, Gerreidae, Haemulidae, Carangidae, Engraulidae, Hemirramphidae, and representative Pleuronectiformes) existing in a common area.
Holonic Production System to Obtain Flexibility for Customer Satisfaction  [PDF]
Gandolfo Dominici
Journal of Service Science and Management (JSSM) , 2008, DOI: 10.4236/jssm.2008.13027
Abstract: The Holonic Production System (HPS) can be a valid choice to overcome the problems of traditional production sys-tems’ architectures, thanks to its capability to adapt and react to changes in the business environment whilst being able to maintain systemic synergies and coordination. The HPS is made of holons seen as functional production units which are simultaneously autonomous and cooperative. Although the holonic approach could represent a valid solution in order to pursue the necessary levels of agility of production systems, they have been scarcely implemented in practice and even less studied from a business studies perspective. The purpose of this discussion paper is to show the benefits of further research on cases of implementation of HPS from a business organization studies perspective. Very little re-search on this topic has been done outside the field of business engineering and computer science; the study of this topic from a different perspective can shed the light on new aspects and new applications of the theory.
Ictioplancton en la zona portuaria de Limón, Costa Rica
Dominici-Arosemena,Arturo; Brugnoli-Olivera,Ernesto; Solano-Ulate,Sylvia; Molina-Ure?a,Helena; Ramírez Coghi,Ana Rosa;
Revista de Biología Tropical , 2000,
Abstract: four sampling stations were set 200-500m off limon port, costa rica, at an average depth of 20 m. from october 1996 to may 1997 horizontal subsuperficial trawls were done for 12 minutes at a speed of 1.853 km/h, with a 1 000 μm net were surveyed with. a total of 28 samples were processed and 104 physical-chemistry parameter measurements were taken. average salinity was 30.1 + 3.7 and dissolved oxygen 6.9 + 0.6 mg l-1 reflecting good aeration throughout the sampling period. this suggests good mixture and a highly dynamic hydrography. temperature showed no drastic variations (28.0 + 1.7 °c), possibly because of the constant mixing with shallow water. the highest larval counts were for november and early january and include families from reefs and estuaries (balistidae, lutjanidae) and from coastal areas (centropomidae, gerreidae, haemulidae, carangidae, engraulidae, hemirramphidae, and representative pleuronectiformes) existing in a common area.
Nested derivatives: a simple method for computing series expansions of inverse functions
Diego Dominici
International Journal of Mathematics and Mathematical Sciences , 2003, DOI: 10.1155/s0161171203303291
Abstract: We give an algorithm to compute the series expansion for the inverse of a given function. The algorithm is extremely easy to implement and gives the first N terms of the series. We show several examples of its application in calculating the inverses of some special functions.
Asymptotic analysis of powers of matrices
Diego Dominici
International Journal of Mathematics and Mathematical Sciences , 2006, DOI: 10.1155/ijmms/2006/79617
Abstract: We analyze the representation of An as a linear combination of Aj, 0≤j≤k−1, where A is a k×k matrix. We obtain a first-order asymptotic approximation of An as n→∞, without imposing any special conditions on A. We give some examples showing the application of our results.
Andamento normale della ionosfera a Roma
P. DOMINICI
Annals of Geophysics , 1972, DOI: 10.4401/ag-5127
Abstract: Vengono presentate formule, curve e tabelle per la previsione dell'andamento normale delle principali caratteristiche ionosferiche nella zona di Roma, dedotte dai dati del periodo 1948-1970 dell'Osservatorio ionosférico di Roma dell'Istituto Nazionale di Geofisica.
ANDAMENTO DELLA IONOSFERA A ROMA NEL PERIODO 1948 - 1953
PIETRO DOMINICI
Annals of Geophysics , 1954, DOI: 10.4401/ag-5713
Abstract: .
COMPORTAMENTO DELLA IONOSFERA A ROMA DURANTE L'ECLISSE PARZIALE DI SOLE DEL 30 GIUGNO 1954
PIERO DOMINICI
Annals of Geophysics , 1956, DOI: 10.4401/ag-5595
Abstract: Un'eclisse di sole offre delle possibilità veramente notevoli di studiare l'influenza del sole sull'alta atmosfera terrestre per ciò cbe concerne i processi di formazione e di sviluppo delle regioni ionosferiche.
Sulla propagazione maGnetoguidata dei whistlers
P. DOMINICI
Annals of Geophysics , 1971, DOI: 10.4401/ag-5160
Abstract: .
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